724-746-5500 | blackbox.com
724-746-5500 | blackbox.com
Page 97
Chapter 8: Basic Configuration Examples
1. If the DNS server cannot resolve the domain name to an IP address, the SmartPath AP broadcasts CAPWAP Discovery messages
on its local subnet for a CAPWAP server (SmartPath EMS VMA). If SmartPath EMS VMA is on the local network and responds,
they form a secure CAPWAP connection.
The SmartPath AP tries to connect to SmartPath EMS VMA using the following default domain name: smartpathEMS.<local_
domain>,
where “<local_domain>” is the domain name that a DHCP server supplied to the SmartPath AP.
If a DNS server has been configured with an A record to resolve that domain name to an IP address, the SmartPath AP and
SmartPath EMS VMA then form a secure CAPWAP connection.
If the first two searches for a local SmartPath EMS VMA produce no results, the SmartPath AP broadens its search even wider and
tries to contact SmartPath EMS Online at SmartPath.blackbox.com:12222. If the online server has a serial number or MAC address
for that SmartPath AP, it responds and they form a secure CAPWAP connection.
If the SmartPath AP cannot make a CAPWAP connection to SmartPath EMS Online using UDP Port 12222, it tries to reach it by
using TCP Port 80:smartpath.blackbox.com:80. If that proves unsuccessful, the SmartPath AP returns to its initial search through a
DNS lookup and repeats the cycle.
SmartPath EMS VMA
SmartPath EMS
VMA Online
1
2
3
4
If the DNS server cannot resolve
the domain name to an IP
address, the SmartPath AP
broadcasts CAPWAP Discovery
messages on its local subnet for
a CAPWAP server (SmartPath
EMS VMA). If SmartPath EMS
VMA is on the local network and
responds, they form a secure
CAPWAP connection.
The SmartPath AP tries to connect to
SmartPath EMS VMA using the following
default domain name:
smartpathemsvma<local_domain>, where
“<local_domain>” is the domain
name that a DHCP server
supplied to the SmartPath AP. If
a DNS server has been
configured with an A record to
resolve that domain name to an
IP address, the SmartPath AP
and SmartPath EMS VMA then
form a secure CAPWAP
connection.
If the first two searches for a
local SmartPath EMS VMA
produce no results, the
SmartPath AP broadens its
search even wider and tries to
contact SmartPath EMS VMA
Online at
staging.blackbox.com:12222. If
the staging server has a serial
number or MAC address for that
SmartPath AP, it responds and
they form a secure CAPWAP
connection.
If the SmartPath AP cannot
make a CAPWAP connection
to SmartPath EMS VMA Online
using UDP port 12222, it tries to
reach it by using TCP port 80:
staging.blackbox.com:80.
If that proves unsuccessful,
the SmartPath AP returns to
its initial search through a DNS
lookup and repeats the cycle.
Figure 8-9. Discovering the CAPWAP server.
8.6 Example 6: Assigning the Configuration to SmartPath APs
After completing the steps in the previous examples, you now assign the WLAN policy to the SmartPath APs. In addition, you set
one radio in access mode and one in backhaul mode, and you change their login settings (and country code if necessary).
Finally, you push the configuration to the SmartPath APs. The transfer of SmartPath AP configuration assignments is presented
conceptually in Figure 8-10.